Home / 781,040.88-1,171,112.72-307,467.84

Finding the Fourth Proportional to 781,040.88, 1,171,112.72 and 307,467.84

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Solution

The fourth proportional to 781,040.88, 1,171,112.72 and 307,467.84 is: 461,025.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,040.88 : 1,171,112.72 = 307,467.84 : x
  2. Step 2: Convert to fraction form
    781,040.88/1,171,112.72 = 307,467.84/x
  3. Step 3: Cross multiply
    781,040.88x = 1,171,112.72 × 307,467.84
  4. Step 4: Simplify right side
    781,040.88x = 360,079,498,414.93
  5. Step 5: Solve for x
    x = 360,079,498,414.93/781,040.88
  6. Step 6: Final answer
    x = 461,025.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.